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coding CV15


aj55

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Can anyone tell me why I should use a filter and code the lens?

(I know I have already put this photo in a thread)

 

 

 

I agree. My CV15 is not filtered. I don't want to have to fiddle with an IR cut filter. I do code it and telll the camera that the IR filter is "OFF", in hopes of some brightness vignetting correction.

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I agree. My CV15 is not filtered. I don't want to have to fiddle with an IR cut filter. I do code it and telll the camera that the IR filter is "OFF", in hopes of some brightness vignetting correction.

 

Interesting statement. Telling the camera that the IR filter is "OFF", does that imply that you tell the camera lens detection is "ON"?

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I seem to notice a magenta tint, as I do with my CV15 uncoded and unfiltered... don't you?

 

Not on my screen, which is "calibrated" to match my Epson 2100 prints.

 

Lloyd, vignetting is easier to compensate with the RAW converter (Lightroom).

Which I didn't do on this picture though.

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You'll only need to filter/code the lens if you photograph people, clothes made from synthetic material or foliage. If you don't shoot any of those then you'll be ok without filter or coding.

 

You'd do well to use this lens and not photograph foliage, such a wide FOV there has to be a tree somewhere.

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I seem to notice a magenta tint, as I do with my CV15 uncoded and unfiltered... don't you?

 

yes, if you tell the camera (via the menu option) that your lens coding detection is "ON + IR" then the camera will compensate for the cyan vignetting/drift from the IR filter with a compensatory magenta cast in the picture corners. You have to select the option in the menu of lens coding of "ON" only, or turn it off altogether, to prevent the magenta corners.

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Guest tummydoc
You'll only need to filter/code the lens if you photograph people, clothes made from synthetic material or foliage. If you don't shoot any of those then you'll be ok without filter or coding.

 

That of course being a universally-applicable statement to any lens on the M8.

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